//
//  UserHelper.h
//  O2O
//
//  Created by Leafc on 13-10-24.
//  Copyright (c) 2013年 leafc. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface UserHelper : NSObject

+ (NSString *)dataSignature:(NSDictionary *)dict;
+ (void)POSTToServiceWithParams:(NSDictionary *)dict;
+ (void)signIn:(NSString *)userName password:(NSString *)password;


@end
